Alice Marie O'Neil

I am looking for information on the family of Alice Marie O'Neil (married name: Alice Marie Preusser.)I am her great-granddaughter and have been unable to find the name of her parents.I know that most in the family say she was from Alexandria Virginia and was born in 1909. Died in 1940 from Tuberculosis. Was married at age 15 to Frederick Charles Preusser and resided in Maryland until her death.